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(ModeL) 2 Sheets-Sheet 1.

J. GAREIS. BXHAUSTBR' FOR GASES AND FLUIDS.

No. 269,403. Patented De0.19, 1882.

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JACOB GAREIS, OF DEUTZ, NEAR COLOGNE, GERMANY.

EXHAUSTER FOR GASES AND FLUIDS. I

SPECIFICATION forming part of Letters Patent No. 269,403, dated December 19, 1882.

Application filed January 20, 1881. (ModeL) Patented in Germany December 23, 1879; in France January 18, 1880 in Belgium February 16, 1880; in England June 12, 1880, and in Austria July 9, 1880.

To all whom it may concern.-

Be it known that I, JACOB GAREIS, a citizen of Germany, residing at Deutz, near Cologne, in the Empire of Germany, have invented certain new and useful Improvements in Exhausters for Gases and Fluids; and Ido hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters or figures of reference marked thereon, which form a part of this specification.

The object of the presentinvention is to provide an improved exhauster for gases and fluids, which is particularly designed for use in gas-factories for exhausting the gas from the generators or retorts,,but is also adaptedfor exhausting and forcing fluids.

The invention consists in the construction and combination of parts, which will be hereinafter morefully described, and then set forth in the claims.

In the drawings, Figure l is a front elevation of an exhauster constructed according to my invention. Fig. 2 is a vertical sectional view thereof. Fig. 3 is a side elevation, and Fig. 4 is a plan or top view of the apparatus. Figs. 5, 6, and 7 are detail views of thepiston. Fig. Sis a cross-section taken through the cylinder and piston. Fig. 9 .is a diagram view, illustrating the various positions of the piston.

The letter A designates a hollow vertical cylinder, the open bottom of which rests upon the base B,'and is separated therefrom in an air-tight manner. The cylinder A is provided with .thimbles a b for the attachment of inlet and outlet pipes for the gases or fluids. The cover 0 of the cylinder is provided with acentral stuffing-box, d, and with horizontal boxes or tubular bearings e, f, and g. A piston-rod, K, reciprocates through the stuffing-box d, and carries at its lower end the piston O and at its upper end the horizontal or transverse bar or arm D, securely attached to said piston-rod.

The piston 0 consists of a cylindrical shell, which is divided into two compartments or chambers by means of a. partition-plate or diaphragm, S, extending through the interior of the piston at an angle of forty-five degrees. The piston is provided with vertical apertures or ports h for the passage of the gas or fluid through the same. The boxes or bearings e and freceive the shafts t, which carry hollow balance-wheels Oat their outer ends, and have cone or bevel-gear wheels F and G keyed to their inner ends. The rims of the balancewheels are made hollow for the reception of counterbalance-weights, so as to properly balance the piston.

The bevel-gear wheelsF Gare provided with seats within their toothed rims for the reception of spherical or ball-shaped bearings m. These bearings are loosely fitted into their seats, and are each provided with an opening for the passage of the cylindrical ends of the transverse bar or arm D. A short shaft has its bearing in the box 9, and carries at its outer end a pulley, Z, or. crank-arm for form ing a connection with a suitable prime motor. A cone-shaped or bevel-gear wheel, 0, secured to the inner end of the shaft carrying the pulley Z, meshes into the gear-wheels F G, so as to cause the same, with their shafts, to revolve in opposite directions. A bent tube, s, connected with the bottom of the cylinder, serves for the discharge of fluids collecting or condensing in the cylinder.

The operation of an exhauster constructed according to my. invention is as follows, viz: Upon rotating the shaft carrying the pulley Z, its bevel-gear wheel will cause the wheels G and H to rotate in an opposite direction from each other, thus imparting an up-and-down and a rotary movement to the piston through the intervention of the globular bearings and the horizontal arm D, connected with the piston-rod K, traversing said bearings. The rotary movement of the piston is imparted thereto simultaneously with the vertical movement of the same, and the piston in its movement describes an angle of ninety degrees. The vertical movement of the piston will cause the gases or fluids to be drawn in and expelled or forced out from the cylinder. The rotary move mentof the piston, taking place sim ultaneously with the vertical movement thereof, causes the difierent portions or chambers of the piston to be alternately presented to the inlet and outlet ports of the cylinder, by which means on the upward stroke the contents of one chamber are compressed, and, on the completion of the half-revolution, liberated into the outletpipe by the rotary movement of the piston. The other chamber meanwhile is receiving a supply to be compressed in like manner. The ribs o, arranged across the ports or apertures in the piston, as shown more fully in Figs. 5 and 7, by their retarding effect on the inflow and outflow of the-gases during the period of the fastest motion of the piston, serve to equalize the strain and promote smoothness of operation in the machine by contracting the area of the ports when the pressure is least, being entirely removed when the pressure reaches its'maximum.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. In an exhauster for gases and fluids, the combination of an apertured piston and mechanism, substantially as described, for impartin g a vertical reciprocating movement and an axial movement thereto, with a cylinder hav- .in g inlet and. outlet pipes, as herein set forth.

2. In an exhauster for gases and fluids, the reciprocating and rotating piston consisting of an apertured cylinder having a diagonal partition-plate, as and for the purpose set forth.

3. The combination of the bevel-gear wheels having globular bearings and the transverse arm fitted therein with the piston-rod, piston, and cylinder, as herein set forth.

4. The piston 0, having the partition-plate S, extending diagonally from side to side, and the apertures h h, provided with ribs 0, as and for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

J AGOB GARE IS.

Witnesses ADOLPH MtiLLER, MARTIN HAHN. 

